Presently she carries a Ruger 9mm in her vehicle, and can shoot it well; however, I'm looking for something she can carry, preferably a smallrevolver or twin-shot pistolthat she can fit in a small purse. She is a nurse that travels a lot, and sometimes has to walk to her vehicle in less than desirable circumstances. I wouldalso consider buying her a tazer, but don't know which ones are the better on the market -- any suggestions?